<html>
<head>
	<script type="text/javascript">
	// history.forward()
		function closeWin()
		  {
		  myWindow.close()
		  }
	</script>
</head>
<body>

<script type="text/javascript">
	myWindow=window.open('','','width=200,height=100')
	myWindow.document.write("This is 'myWindow'")
</script>

<input type="button" value="Close 'myWindow'"
onclick="closeWin()" />

</body>
</html>